Feeding device of roller press

Abstract

The utility model relates to a feeding device of a roller press, which comprises a valve body, two arc-shaped valve cores, a hydraulic push rod, a macromolecular wear-resistant sealing plate and a material feeding adjusting mechanism, rotating shafts are arranged at the two ends of the arc-shaped valve cores, the rotating shafts penetrate through the valve body and are connected to a heavy-duty bearing on the outer side of the valve body, and the hydraulic push rod drives the corresponding rotating shafts to rotate through a shaft handle. The opposite sides of the two arc-shaped valve elements can be attached to or separated from each other through rotation, macromolecule wear-resisting sealing plates corresponding to the arc-shaped valve elements one to one are arranged on the inner wall of the valve body, and the macromolecule wear-resisting sealing plates are arranged on the opposite sides of the two arc-shaped valve elements and make sliding contact with the surfaces of the corresponding arc-shaped valve elements. The material feeding adjusting mechanism is arranged on the outer side of the valve body and acts on the hydraulic push rod. The feeding device has the advantages that feeding of materials can be accurately adjusted in real time, material accumulation and structure jamming deformation are not prone to occurring, impact of the materials can be reduced, dust raising can be controlled, pollution to the environment and equipment can be controlled, and production cost can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of roller press equipment, and particularly relates to a roller press feeding device. BACKGROUND

[0002] The roller press, also known as an extrusion mill, a roller mill or a pair roller machine, is a new type of cement energy-saving grinding equipment developed in the mid-1980s, which can replace a ball mill pre-grinding system with high energy consumption and low efficiency, has the functions of reducing steel consumption and working noise, is suitable for new plant construction and can also be used for technical transformation of old plants, and can increase system output by 30-50%.

[0003] The existing cement production line has a roller press, and a pair of air-operated rod gates or air-operated gate valves need to be installed from the constant weight bin of the roller press to the roller press to control the opening and closing of the material. Since the air-operated rod gate and the gate valve can only be fully opened and closed instantaneously, the material passing amount and passing speed cannot be controlled, the precise control requirement cannot be met, the rod gate is relatively high from the roller surface, the rod gate is instantaneously opened, the material flow speed is relatively fast and impact dust is generated, the equipment and the environment are polluted, and the rod gate and the gate valve are both flat plate structures, are prone to jamming and deformation, affect production, and increase maintenance cost and environmental governance cost. UTILITY MODEL CONTENT

[0004] The utility model aims at overcoming the defects of the prior art, providing a roller press feeding device, which can perform real-time and precise regulation on material feeding, is not prone to material accumulation and structural jamming and deformation, and is beneficial to reducing production cost.

[0005] The utility model aims at overcoming the defects of the prior art, providing a roller press feeding device, which can perform real-time and precise regulation on material feeding, is not prone to material accumulation and structural jamming and deformation, and is beneficial to reducing production cost.

[0006] The utility model discloses a roller press feeding device, including valve body, arc valve core, hydraulic push rod, high polymer wear -resisting sealing plate and material feeding regulation mechanism, two arc valve cores are equipped and two arc valve cores are in parallel and are equipped in the valve body, the both ends of arc valve core are equipped with the pivot, the pivot passes through the valve body and is connected to the heavy load bearing outside the valve body, the outside of valve body is equipped with the hydraulic push rod corresponding with the pivot, the hydraulic push rod is driven corresponding pivot rotation through the shaft handle, the opposite side of two arc valve cores can be mutually pasted or separated through rotation, the inner wall of valve body is equipped with the high polymer wear -resisting sealing plate corresponding with arc valve core, the high polymer wear -resisting sealing plate is equipped on the side opposite to two arc valve cores and is in sliding contact with the surface of corresponding arc valve core, and material feeding regulation mechanism is equipped outside the valve body and acts on the hydraulic push rod.

[0007] Further, the arc valve core comprises an arc plate and a connecting plate, the two ends of the arc plate are supported on the pivot through the connecting plate, the opposite sides of the two arc plates can be mutually pasted or separated through rotation, and the high polymer wear-resistant sealing plate is in sliding contact with the surface of the corresponding arc plate.

[0008] Further, the outer side wall of the valve body is provided with a support plate, and the heavy load bearing is arranged on the support plate.

[0009] Further, the outer side wall of the valve body is provided with a support plate, and the heavy load bearing is arranged on the support plate.

[0010] Further, the inner wall of the valve body on the side opposite to the two arc-shaped plates is provided with a lower cover plate, an upper cover plate is arranged above the lower cover plate, and one side of the high-molecular wear-resistant sealing plate is clamped between the lower cover plate and the upper cover plate, and the other side of the high-molecular wear-resistant sealing plate is in sliding contact with the surface of the corresponding arc-shaped plate.

[0011] Further, the material feeding adjusting mechanism comprises a potentiometer, a potential transmitter and a DCS system, the potentiometer is arranged on the support frame and corresponds to the rotating shafts at one end of the two arc-shaped valve cores in a one-to-one manner, the input shaft of the potentiometer is concentrically connected with the corresponding rotating shaft, the potentiometer, the potential transmitter and the DCS system are sequentially electrically connected, and the hydraulic push rod is electrically connected to the DCS system.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1、 the utility model discloses a structure is arranged such as arc-shaped valve core, hydraulic push rod, material feeding adjusting mechanism, and material feeding mechanism can drive two arc-shaped valve cores to rotate with the hydraulic push rod according to real -time situation, and then makes two arc-shaped valve cores mutually adhere or separate and realizes the opening and closing of material feeding, and can adjust the rotation speed of arc-shaped valve core and the opening of two arc-shaped valve cores, and then realizes the accurate regulation of material feeding amount and feeding speed, and can reduce the equipment and environmental pollution caused by dust generation.

[0014] 2、 the utility model discloses a structure is arranged such as arc-shaped valve core, hydraulic push rod, material feeding adjusting mechanism, and material feeding mechanism can drive two arc-shaped valve cores to rotate with the hydraulic push rod according to real -time situation, and then makes two arc-shaped valve cores mutually adhere or separate and realizes the opening and closing of material feeding, and can adjust the rotation speed of arc-shaped valve core and the opening of two arc-shaped valve cores, and then realizes the accurate regulation of material feeding amount and feeding speed, and can reduce the equipment and environmental pollution caused by dust generation. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the overall structure schematic diagram of the utility model;

[0016] Figure 2 It is the overall structure schematic diagram of the utility model;

[0017] Figure 3 It is the overall structure schematic diagram of the utility model;

[0018] Figure 4 It is Figure 3 the structure enlarged schematic diagram of A in the utility model.

[0019] In the diagram: 1. Valve body; 2. Arc-shaped valve core; 3. Hydraulic push rod; 4. Polymer wear-resistant sealing plate; 5. Rotary shaft; 6. Heavy-duty bearing; 7. Shaft handle; 8. Arc-shaped plate; 9. Connecting plate; 10. Support plate; 11. Support frame; 12. Lower cover plate; 13. Upper cover plate; 14. Potentiometer. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0021] like Figures 1-4 As shown, a roller press feeding device includes a valve body 1, an arc-shaped valve core 2, a hydraulic push rod 3, a polymer wear-resistant sealing plate 4, and a material feeding adjustment mechanism. Two arc-shaped valve cores 2 are arranged parallel to each other within the valve body 1. Rotating shafts 5 are located at both ends of each arc-shaped valve core 2. The rotating shafts 5 pass through the valve body 1 and are connected to heavy-duty bearings 6 on the outside of the valve body 1. Hydraulic push rods 3, corresponding one-to-one with the rotating shafts 5, are located on the outside of the valve body 1. The hydraulic push rods 3 drive the corresponding rotating shafts 5 to rotate via shaft handles 7, thereby driving the two arc-shaped valve cores 2 to rotate. The upper part of the valve body 1 is the feed inlet, and the lower part is the discharge outlet. When the opposite sides of the two arc-shaped valve cores 2 rotate and come into contact with each other, the feed inlet... When the two arc-shaped valve cores 2 are closed, and their opposite sides are separated by rotation, the feed port opens, allowing material to fall from between the two arc-shaped valve cores 2 to the discharge port. The material feeding can be opened and closed by rotating the two arc-shaped valve cores 2 through the hydraulic push rod 3. The material feeding adjustment mechanism is located on the outside of the valve body 1 and is used to control the hydraulic push rod 3 according to the real-time rotation of the arc-shaped valve cores 2, thereby controlling the rotation speed of the arc-shaped valve cores 2 and the opening degree between the two arc-shaped valve cores 2, so as to achieve precise adjustment of material feeding.

[0022] A polymer wear-resistant sealing plate 4 is provided on the inner wall of the valve body 1, corresponding one-to-one with the arc-shaped valve core 2. The polymer wear-resistant sealing plate 4 is located on the opposite side of the two arc-shaped valve cores 2 and slides in contact with the surface of the corresponding arc-shaped valve core 2. This allows the polymer wear-resistant sealing plate 4 to scrape off the material accumulated on the surface of the arc-shaped valve core 2 during the rotation of the arc-shaped valve core 2, thereby preventing the material accumulation from causing the arc-shaped valve core 2 to jam and deform, and reducing the occurrence of failures.

[0023] like Figure 3 , Figure 4 As shown, the arc-shaped valve core 2 includes an arc-shaped plate 8 and a connecting plate 9. The connecting plates 9 are fixed to both ends of the arc-shaped plate 8 and are fixed to the rotating shaft 5. This allows the arc-shaped plate 8 to be supported on the rotating shaft 5 via the connecting plates 9. The hydraulic push rod 3 drives the rotating shaft 5 to rotate via the shaft handle 7, and the rotating shaft 5 then drives the arc-shaped plate 8 to rotate via the connecting plates 9. The two arc-shaped plates 8 can be brought together or separated on opposite sides by rotation, thus realizing the opening and closing of material feeding. Figure 3As shown, when the feeding port is closed, the two arc-shaped plates 8 are in a V shape as a whole, which can reduce the friction of the material on the arc-shaped valve core 2. When the two arc-shaped plates 8 are separated for material feeding, the material falls in a gradual process, which will not cause excessive impact on the roller press. The inner wall of the valve body 1 on the side opposite to the two arc-shaped plates 8 is fixed with a lower cover plate 12, and an upper cover plate 13 is arranged above the lower cover plate 12. One side of the high-molecular wear-resistant sealing plate 4 is located between the upper cover plate 13 and the lower cover plate 12, and the upper cover plate 13, the lower cover plate 12 and the high-molecular wear-resistant sealing plate 4 are fixed together by bolts, so that the one side of the high-molecular wear-resistant sealing plate 4 is clamped between the lower cover plate 12 and the upper cover plate 13, and the other side of the high-molecular wear-resistant sealing plate 4 is in sliding contact with the surface of the corresponding arc-shaped plate 8. In this way, the material accumulated on the surface of the arc-shaped plate 8 is scraped off by the high-molecular wear-resistant sealing plate 4.

[0024] As shown in Figure 3 , the support plate 10 and the support frame 11 are fixed on the outer wall of the valve body 1. The heavy load bearing 6 is installed on the support plate 10, and the rotating shaft 5 at both ends of the arc-shaped valve core 2 is supported by the heavy load bearing 6, which can enhance the load bearing and reduce the rotating friction. The hydraulic push rod 3 is installed on the support frame 11, one end of the shaft handle 7 is rotationally connected with the extension end of the corresponding hydraulic push rod 3 through the shaft pin, and the other end of the shaft handle 7 is fixedly connected with the corresponding rotating shaft 5, so that the hydraulic push rod 3 drives the rotating shaft 5 to rotate in the extension process, and then drives the arc-shaped valve core 2 to rotate.

[0025] The material feeding adjusting mechanism includes a potentiometer 14, a potential transmitter and a DCS system (i.e. a distributed control system). As shown in Figure 1 , the potentiometer 14 is installed on the support frame 11 and corresponds to the rotating shaft 5 at one end of the two arc-shaped valve cores 2, and the input shaft of the potentiometer 14 is concentrically connected with the corresponding rotating shaft 5. The potentiometer 14, the potential transmitter and the DCS system are electrically connected in sequence, and the hydraulic push rod 3 is electrically connected to the DCS system. In the process of rotating the arc-shaped valve core 2 by the hydraulic push rod 3 to feed the material, the potentiometer 14 generates a resistance signal by rotating with the rotating shaft 5 and transmits the resistance signal to the potential transmitter. The potential transmitter converts the resistance signal into an analog quantity (4-20MA) and transmits it to the DCS system. The DCS system obtains the state position (0%-100%) of the arc-shaped valve core 2 according to the analog quantity signal. After receiving the feedback of the opening position of the arc-shaped valve core 2 in the field, the DCS can control the hydraulic push rod 3 according to the real-time situation, so as to adjust the opening degree between the two arc-shaped valve cores 2 and the rotating speed of the arc-shaped valve core 2 through the hydraulic push rod 3, and then realize the precise adjustment of the material feeding amount and the feeding speed. During the material feeding process, the opening speed can be controlled by adjusting the rotating speed of the arc-shaped valve core 2, which can reduce the material impact and in turn reduce the equipment and environmental pollution caused by dust generation.

[0026] The equalization regulation of material feeding needs to open the specified opening degree, in the embodiment, the opening degree of 30% is input by the DCS system, when the arc-shaped valve core 2 is opened to 30%, the resistor signal is transmitted to the potential transmitter according to the rotation of the potential transformer 14 driven by the rotating shaft 5 on the arc-shaped valve core 2, then the resistor signal is converted into an analog signal by the potential transmitter and transmitted to the DCS, when the DCS receives the signal that the arc-shaped valve core 2 is opened to 30%, the stop command is output, then the hydraulic push rod 3 is controlled to stop working and is locked.

[0027] Through the above roller press feeding device, the present application can realize the accurate regulation of material feeding, in the working process, the feeding device is stable and reliable in the whole operation, is not easy to produce material accumulation to cause the arc-shaped valve core 2 to be jammed and deformed, at the same time, the equipment and environmental pollution caused by dust raising can be reduced, and then the production cost is reduced.

[0028] Finally, although the above description has shown and described the embodiments of the present application, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A roll press feed apparatus characterized by: The utility model relates to a valve body (1), arc valve core (2), hydraulic push rod (3), high polymer wear -resistant sealing plate (4) and material putting adjusting mechanism, arc valve core (2) is equipped with two and two arc valve core (2) parallel in valve body (1), arc valve core (2) both ends are equipped with pivot (5), pivot (5) passes through valve body (1) and is connected to heavy load bearing (6) outside valve body (1), valve body (1) outside is equipped with with pivot (5) one -to -one corresponding hydraulic push rod (3), hydraulic push rod (3) is driven corresponding pivot (5) rotation through axle handle (7), two arc valve core (2) opposite side can mutually adhere or separate through rotation, valve body (1) inner wall is equipped with with arc valve core (2) one -to -one corresponding high polymer wear -resistant sealing plate (4), high polymer wear -resistant sealing plate (4) is equipped with two arc valve core (2) opposite side and with corresponding arc valve core (2) surface sliding contact, and material putting adjusting mechanism is equipped with valve body (1) outside and acts on hydraulic push rod (3).

2. The roll press feed apparatus according to claim 1, characterized by: Arc valve core (2) includes arc plate (8) and connecting plate (9), and arc plate (8) both ends are supported on pivot (5) through connecting plate (9), and two arc plate (8) opposite side can mutually adhere or separate through rotation, and high polymer wear -resistant sealing plate (4) with corresponding arc plate (8) surface sliding contact.

3. The roll press feed apparatus according to claim 1, wherein: Valve body (1) outside wall is equipped with support plate (10), and heavy load bearing (6) is equipped on support plate (10).

4. The roll press feed apparatus according to claim 1, characterized by: Valve body (1) outside wall is equipped with support frame (11), and hydraulic push rod (3) is equipped on support frame (11), and axle handle (7) one end is rotationally connected with corresponding hydraulic push rod (3) telescopic end, and axle handle (7) other end is fixedly connected with corresponding pivot (5).

5. The roll press feed apparatus according to claim 1, wherein: Two arc plate (8) opposite side valve body (1) inner wall is equipped with lower cover plate (12), and upper cover plate (13) is equipped above lower cover plate (12), and one side of high polymer wear -resistant sealing plate (4) is clamped between lower cover plate (12) and upper cover plate (13), and the other side of high polymer wear -resistant sealing plate (4) is slidably contacted with the surface of corresponding arc plate (8).

6. The roll press feed apparatus according to claim 4, wherein: Material putting adjusting mechanism includes potentiometer (14), potential transmitter and DCS system, and potentiometer (14) is equipped on support frame (11) and is one -to -one corresponding with pivot (5) one end of two arc valve core (2), and the input shaft of potentiometer (14) is concentrically connected with corresponding pivot (5), and potentiometer (14), potential transmitter, DCS system are sequentially electrically connected, and hydraulic push rod (3) is electrically connected to DCS system.

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